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A kind of acidic soil remediation agent and preparation method and application thereof

An acid soil and remediation agent technology, applied in the application, soil conditioning materials, chemical instruments and methods, etc., can solve the problems of poor durability and easy re-acidification of soil, so as to prevent secondary acidification of soil, increase soil porosity, The effect of preventing hardening

Active Publication Date: 2022-08-02
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above methods can effectively and quickly reduce acidity and supplement fertilizers, but the durability is poor, and the soil is easy to re-acidify

Method used

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  • A kind of acidic soil remediation agent and preparation method and application thereof
  • A kind of acidic soil remediation agent and preparation method and application thereof

Examples

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Comparison scheme
Effect test

no. 1 example

[0036] A preparation method of an acidic soil remediation agent, comprising the following steps:

[0037] (1) Preparation of modified white mud powder: the white mud was dried at 105°C for 2 hours, then placed in a horse boiler and calcined at 650°C for 2.5 hours. During the calcination process, the main component of white mud was CaCO 3 and Ca(OH) 2 Decomposed to CaO. After the calcination is completed, it is cooled to room temperature, and then placed in a grinder for grinding for 30 minutes to obtain modified white mud powder, which is used for later use.

[0038] (2) Preparation of acid-reducing microparticles: 85 parts by weight of modified white clay powder prepared in step (1), 16 parts by weight of dicalcium ferrite and 20 parts by weight of water are mixed and stirred evenly, and the obtained mixture is placed in the Pellet into balls in a granulator to obtain acid-reducing particles, which are used for later use.

[0039] (3) Preparation of fruit juice waste resid...

no. 2 example

[0043] A preparation method of an acidic soil remediation agent, comprising the following steps:

[0044] (1) Preparation of modified white mud powder: the white mud was dried at 115°C for 1 hour, then placed in a horse boiler and calcined at 500°C for 3 hours. During the calcination process, the main component of white mud was CaCO 3 and Ca(OH) 2 Decomposed to CaO. After the calcination is completed, it is cooled to room temperature, and then placed in a grinder to grind for 20 minutes to obtain modified white clay powder, which is used for later use.

[0045] (2) Preparation of acid-reducing microparticles: 75 parts by weight of modified white clay powder prepared in step (1), 10 parts by weight of dicalcium ferrite and 15 parts by weight of water are mixed and stirred evenly, and the obtained mixture is placed in the Pellet into balls in a granulator to obtain acid-reducing particles, which are used for later use.

[0046] (3) Preparation of fruit juice waste residue pow...

no. 3 example

[0050] A preparation method of an acidic soil remediation agent, comprising the following steps:

[0051] (1) Preparation of modified white mud powder: the white mud was dried at 100°C for 3 hours, then placed in a horse boiler and calcined at 750°C for 2 hours. During the calcination process, the main component of white mud was CaCO 3 and Ca(OH) 2 Decomposed to CaO. After the calcination is completed, it is cooled to room temperature, and then placed in a grinder to grind for 10 minutes to obtain modified white clay powder, which is used for later use.

[0052] (2) Preparation of acid-reducing microparticles: 70 parts by weight of modified white clay powder prepared in step (1), 12 parts by weight of dicalcium ferrite and 20 parts by weight of water are mixed and stirred evenly, and the obtained mixture is placed in the Pellet into balls in a granulator to obtain acid-reducing particles, which are used for later use.

[0053] (3) Preparation of fruit juice waste residue po...

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Abstract

The invention relates to the technical field of soil improvement, and specifically discloses an acidic soil repair agent and a preparation method and application thereof. The repairing agent comprises the following components: 20-40 parts by weight of microbial bacteria balls, 50-70 parts by weight of acid-reducing particles and 120-160 parts by weight of organic fertilizer. Wherein: the microbial bacteria ball includes: a network matrix, polyglutamic acid, polygalacturonic acid, microbial bacteria powder, and cellulose ether, and the microorganisms in the microbial bacteria powder are attached to the network matrix. The acid-reducing particles include: modified white mud, dicalcium ferrite and water; the modified white mud refers to white mud powder whose active ingredient includes calcium oxide. The characteristics of the acidic soil remediation agent of the present invention are: the acid-reducing particles mainly composed of modified white mud and dicalcium ferrite can release alkaline substances for a long time to prevent secondary acidification of the soil; and microbial bacteria balls can provide microorganisms The ecological network system in which bacteria survive for a long time can continuously release microbial bacteria and nutrients to the soil.

Description

technical field [0001] The invention relates to the technical field of soil improvement, in particular to an acidic soil remediation agent and a preparation method and application thereof. Background technique [0002] The information disclosed in this Background section is only for enhancement of understanding of the general background of the invention and should not necessarily be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art. [0003] In order to meet the huge food demand brought about by the rapid population growth, people increase food production by increasing the application of chemical fertilizers. However, excessive application of fertilizers, especially when nitrogen fertilizers are applied too much, nitrogen fertilizers will be converted into nitrates during the decomposition process. When nitrates are lost, a large amount of calcium and magnesium ions in the so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40C05G3/60C05G3/80C09K101/00C09K109/00
CPCC09K17/40C05F9/04C05F3/00C05F5/002C05F11/00C05G3/60C05G3/80C09K2101/00C09K2109/00C05F11/08
Inventor 宫晨琛霍柳青高新王艳飞戴靖芦令超
Owner UNIV OF JINAN
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